Of same place



Patented Sept. 21,1880.

IVI. HOGAN. Self-Closing Cook.

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NITED STATES PATENT Ormea.

MATTHEWUHOGAN, OF HARTFORD, CONNECTICUT, ASSIGN OR TO THE HART- FORD SANITARY PLUMBING COMPANY,`"OF SAME PLACE.

SELF-CLOSING COCK.

SPECIFICATION forming' part of Letters Patent No. 232,350, dated September 21, 1880.

Application filed March 7, 1879.

To all whom fit may concern:

Beit known that I, MATTHEW HOGAN, of Hartford, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements Pertaining to a Self- Closing Cock, of which the following is a speci- Iication, reference being had to the accompanying drawings, where- Figure 1 is a side view of the cock with a part of the body or casing broken away. Fig. 2 is a view of the cock in central vertical longitudinal section. Fig. 3 is a view of the cock in cross-section on the plane denoted by the dotted line xx.

Theletter rt denotes the body or main casing ofthe cock. b denotes a tube screwing into the induction end of the same, provided with orifices c. d denotes acap screwing upon the inner end of induction-tube b, provided with an orifice, c, for the passage of the valves-od j'. The orifice c is also a valveopening.

The letter g denotes a conical thimble tti n g into cap d, provided with orifice h. The letter t' denotes a spider-legged plate fitting into the induction-tube b, the openings between the legs forming, when this plate is in place in the induction-tube,orifices which admit the Water past this plate outside of the tubular rubber valve j, which at the rear end fits on a boss projecting from the plate t' and at the front end fits on the thimble g. The letter lr denotes a small water-way through plate z', the opening of which is enlarged or diminished at pleasure by means of the regulatingscrew l.

The valve-rod f passes through the casing c, for manipulation on the outside thereof. It bears within the cap cl the valve m, pressed to its seat by spring n. When the valve mis closed no water flows through the cock; but when it is opened the Water passes through it more freely than it can come through the water- Way 7c, the latter being the smaller of the two.

This allows the water bearing on the outside ofthe tubular rubber valve j to press this tubular valve inward, uncovering the orifices c, allowing the water to tlow freely through them and out at the eduction end of the casin g a. When the valve m closes, the water fills into the inside of tubular valve j, and expands it to its normal shape, covering and closing the orifices c, and shutting 'off the flow of water through the cock.

I claim as my inventionl. The combination, in a water-cock, of the collapsing tubular valve j with the perforated casing or valve-seat b, all substantially as described, and for the purpose set forth.

2. The combination, in a water-cock, of the perforated casing or valve-seat b, the collapsing tubular valve j, the plate z', provided with Water-Way 7c, the cap d, and the valve m, all substantially as described, and for the purpose set forth.

Witnesses: MATTHEW HOGAN.

W. E. SIMONDs, HENRY SMALL. 

